Lenvatinib Suppresses Protein Kinase B Signaling and Induces Apoptosis in Osteosarcoma Cells
Chun-Yi Li1, Hsin-Chuan Chen1,2, Chih-Ying Liao3
1Department of Orthopedics, Show Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.
Background/Aim:
Lenvatinib, an oral multikinase inhibitor, has demonstrated promising activity in patients with osteosarcoma (OS). Therefore, it is worth exploring the inhibitory efficacy and mechanism of action of lenvatinib in osteosarcoma. The primary goal of this study was to examine the inhibitory effectiveness and mechanism of lenvatinib on the growth and invasion of OS cells.
Materials And Methods:
The effects of lenvatinib on cell viability, apoptosis, protein kinase B (AKT) activation, its downstream effector proteins involved in tumor progression, and invasion capability were assessed using MTT assay, flow cytometry, western blotting, and invasion/migration assay on U-2 OS and MG63 cells.
Results:
Lenvatinib effectively induced cytotoxicity, apoptosis, as well as extrinsic and intrinsic apoptotic signaling in OS cells. Lenvatinib also significantly decreased the invasion/migration capability, AKT activation, and downstream effector proteins.
Conclusion:
The anti-OS effect of lenvatinib may be associated with the induction of apoptosis and the inactivation of AKT.
Insights
Lenvatinib effectively inhibits osteosarcoma (OS) cell growth and invasion by inducing apoptosis and inactivating the AKT pathway. This study explores lenvatinib
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Osteosarcoma (OS) is a primary bone malignancy.
- Lenvatinib, an oral multikinase inhibitor, shows potential in OS treatment.
Purpose of the Study:
- To investigate the inhibitory effects of lenvatinib on OS cell growth and invasion.
- To elucidate the mechanism of action of lenvatinib in OS.
Main Methods:
- Assessed lenvatinib's impact on cell viability, apoptosis, AKT activation, and downstream effectors.
- Utilized MTT assay, flow cytometry, western blotting, and invasion/migration assays.
- Tested on U-2 OS and MG63 osteosarcoma cell lines.
Main Results:
- Lenvatinib induced significant cytotoxicity and apoptosis in OS cells.
- Lenvatinib decreased OS cell invasion and migration capabilities.
- Lenvatinib inhibited AKT activation and its downstream signaling pathways.
Conclusions:
- Lenvatinib exhibits anti-osteosarcoma effects.
- Apoptosis induction and AKT pathway inactivation are key mechanisms of lenvatinib's action in OS.
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